Wrapping machine



Feb. 23 ,1926.

F. M. PIERCE WRAPPING MACHINE 3 ySheets-Skaai'. 1

Filed Jan. 10, 1924 Feb. 23 1926. 1,574,438

F. M. PIERCE WRAPPING MACHINE Filed Jan. 10, 1924 5 Sheets-Shea?I 2 QZUZ'NQSS' fkA/vk /7. H5965.

@Cw/f@ d@ Feb. 23 1926. 1,574,438

F. M. PIERCE WRAPPING MACHINE Filed Jan. l0, 1924 5 Sheets-Sheet 3vPatented Feb. 23, 1926.

UNITED STATES PATENTl GFFICE.

ERANx M. RIERCE, OE CHICAGO, ILLINOIS, AssIeNoR To MERCE WRAPIING MA-CHINE COMPANY, or CHICAGO, ILLINOIS, A CORPORATION 0F ILLIN01S- wRAPrINGMACHINE.

Application led January 10, 1924. Serial No. 685,325.

To all 'whom it ma concern:

Be it known that I, FRANK M. PIERCE, a citizen of the United States, anda resident of Chicago, county of Cook, State of Illinois, have inventedcertain new and useful Im rovements in VVrapp-ing Machines, of which thefollowin is a specification.

This invention re ates to machines for use in Wrapping annularobjectsxsu'ch as automobile tires, coils of wire, or similar articles,with a spirally applied wrapping` such, for example, as a paperWrapping. The invention relates to machines of the type shown in myprior Patent No. 1,399,939 dated December 13, 1921, and is for animprovement thereon, by means of which the machine therein shown may beoperated more rapidly and economically.

The machine shown herein is of the type wherein the article to bewrapped is supported and rotated by positively driven feed rollerswithin the path of a rapidly revolving ring shuttle which passes throughthe central opening of the rotating article, the shuttle carrying thepaper or other material which is thereby wrapped about the article. Thistype of machine is generally well known. The shuttle is carried in ashuttle frame and both the shuttle and the frame are provided withopenings through which the article may be placed in .position andremoved when the wrapping is completed, the openings for this purposebeing in' registry. The present invention has for its ob ject theprovision of mechanism whereby the shuttle is automatically stopped withits opening or gap in registry with the opening or gap in the shuttlesupporting frame This mechanism is in combination with the devices whichdisengage the rotating parts of the machine from its drive so that thestoppage of the shuttle and the other elements of the machine occursimultaneously.

In the drawings: t Figure 1 is a side elevation of the Wrapping machinehaving my improvement applied thereto;

Figure 2 is a plan View partially 1n section 0n the line 2 2 of Figurel;

Figure 3 is a vertical section on the line 3 3 of Figure 2; and

Figure 4 is a detail of the lever mechanism for the shuttle brake, theview being taken on the line 4 4 of Figure 1.

It will be understood that the machine herein shown is in its principaloperative features similar to that shown in my prior patent abovereferred to and it is therefore unnecessary to describe the details ofthe machine except in so far as they relate to the specific improvementsto be covered herein.

The machine comprises a base 1, at one side of which is arranged asupport 2 for the operating motor 3, the pinion 4 of which engages agear 5 which carries a clutch 6, both being rotatable upon the maindriving shaft 7. The clutch is operated to connect it to the drivingshaft by means of a shifting 'lever 8 pivoted to the base of the machineat 9 and connected at its upper end to a lilik 10 which is, in turn`secured to a control shaft l2 mounted in suitable bearings 13 on themachine frame. The forward end of the shaft is provided with a handlever 14 and, if desired, foot treadles 15 may also be incorporated inthe machine, these treadles being connected to a cross bar 16 secured tothe shaft 12 at any convenient point. By the operation of the lever letor foot treadles 15, the machine may he stopped or started as desired. p

In the frame of the machine are mounted the adjustable supportingrollers or drums 16, which are concave or flanged as desired, and areintende-d to support and drive the object to be wrapped, herein shown at17. The means for adjusting the rollers to accommodate various sizes ofarticles need not be described herein, nor will the means for drivingone or both of them, as neither of these features form any part of thepresent invention, it being sulicient merely to state vtrack or raceway21. The shuttle carrier shuttle 'is substantia lyring shaped ,asl

shown, bein broken'away to ,permit the insel-tion of t e article, theparts belngpositioned in Figure2 so that the article may be insertedv orremoved. The shuttlek carries upon its upper surfacea pinor, )spool 25upon which ytheroll ofgwra p1ng1ma terial 26 is supporte'd,fthefmaterialpassing from the s oolover a tension device 27, through a older 28andover a. 29 to the article. l u

The shuttle is'driven from a pulley 30 on the main shaft by a belt 31.The belt is guided by a series of pulleys, indicated by the numerals 32,so that it passes 'from the pulley 30 to the top plate of the machlneand then in a horizontal plane around two v sides of the shuttle, beingreceived in a groove 33 in the outer periphery thereof and back.

to the pulley 30. A At one point on the outer periphery of the shuttleis formed an enlargement o r projection 34, which, in this form of theinvention and as shown in Figure 2, is in the form of a cam or curvedlug which is preferably formed as an eccentric curved surface projectingoutwardly. from the outer surface of the shuttle. On the upper surfaceof the top plate 18 is pivoted a lever 35, the free end of which isprovided with a brake shoe 36 adapted to contact with the cam 34 and 1sso located so that when the lever is rocked about its pivot toward theshuttle, the latter will be stopped with its gap in line with the gap inthe shuttle frame. The rear end of the lever is provided with a seriesof holes 37 for major adjustn'ient purposes, in which is .received oneend of an angular pin 38 which is adjustably received in a pivoted fork39 so that minor adjustments may be made (Figure 4) The fork 39 ispivoted to a small bell crank 40 which is 'in 'turn connected to theupper end of a link 41 which at its lower end 1s pivotally 'connected toa arm 42 carried upon the shaft 12.

By the mechanism which has been described, it will be seen that as theshaft 12 is rocked toward the left, as shown in Fig. ure 1, the clutch 6will be released andthe brake 34 will be brought into position to engagethe projection 36 as the shuttle revolves, and the shuttle will bestopped with its parts in position so that the object can be removed.Should the lever be operated just as the cam is passing the brake, itwill continue its revolution and be caught and held when these parts areagain brought into cooperation.

aimsfto provide a positive stop for the shuttle""vc"ithA the gap orshuttle opening in line with `the. corres ondin gap 1n the shuttleframe., .It may u e use 'in all types of wrappin `,machines oft-hisgeneral desi and wit ip open gap shuttles or those whlch are providedwith swinging or removable gates. .The action of the attachment is quickand positive and will save time in the operation of the machine.

Changes and modifications other than those suggestedmay be made in thedesign of the machine within the scope of the claims appended hereto.`

VVhatfis claimed is: y

1. In a wrapping machine of the character described, the combination ofa shuttle frame, a ring shuttle mounted on said frame, the frame andshuttle being provided with openings through which the article may bepassed, means includin a clutch to rotate the shuttle, avbrake mec anismadjacent the shuttle, a cam formation on the outer periphery of theshuttle and with which the brake is adapted to engage, and a commonoperating member to release the clutch and apply the brake to the cam.

2. In a lwrapping machine, the combination of a ring shuttle constructedso as to permit the insertion of an article to be Wrapped therein, meansto rotate the ring shuttle including a clutch and means adapted to stopthe rotation of the shuttle at a delinite point comprising a brake, afixed formation on the shuttle, means to move the brake so that it is inposition to engage the formation and a simultaneously operating clutchreleasing mechanism.

3. In a wrapping machine, the combination of a ring shuttle constructedso as to permit the insertion of an article to be wrapped therein,driving mechanism for theJ ring shuttle including means to disconnect ittherefrom, a brake, a fixed formation on the shuttle, and means operableto simultaneously apply the brake to engage the formation and disconnectthe driving mechamsm. u

4. In a Wrapping machine, the combinat1on of a ring shuttle having a gaptherein, a stop formation located on the shuttle at a fixed point spacedfrom the gap, and a brake lever movable to engage the formation.

5. In a Wrapping machine, the combination of a ring shuttle constructedso as to permit the insertion of an article to be wrapped therein, a camformation on the outer periphery of the shuttle, a pivoted brakeadjacent the shuttle, and means to move the brake to engage the camformation.

6. In'a wrapping machine, the combina.- '7. In a. wrapping machine, thecombination of a ring. shuttle havin a gap theretion of n ringshuttlehaving an opening in, a shuttle support also aving a lgap -therethrou h,and means to frictionajly eh- 10 therein, .and lmeans yto rictionallyengge gage-the 's uttle and acting to bring it 'to 5 the shuttle" andacting to bringl 1t to rest rest with its opening in adenite position.

v with its gap jin registry with the gap :in the v frame. y FRANK M.PIERCE.

